Cleaning brush



FIG. 1 is a perspective view of a cleaning brush.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a right side elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof, shown in an environment of use.

In the drawings, the broken lines are included for the purpose of illustrating environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a cleaning brush, as shown and described. 